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In the modern construction industry, accuracy and efficiency in volume calculations are crucial aspects of project success. This study compares two methods for calculating the volume of pile caps and reinforcement: the manual method and the Building Information Modeling (BIM)-based method. The manual method has long been used but has limitations in terms of time efficiency and a higher risk of errors. In contrast, the BIM method offers more accurate and efficient calculations through software-based digital modeling. This study employs a descriptive-comparative quantitative approach by analyzing volume calculation data using both methods. The results indicate that the BIM method has a higher level of accuracy, with a concrete volume of 1,822.87 m³ and reinforcement of 148,862.80 kg, compared to the manual method, which produced a concrete volume of 1,842.17 m³ and reinforcement of 150,279.05 kg. The comparison of pile cap volume calculations shows that the BIM method achieves 98.95% effectiveness in concrete volume calculations and 99.06% effectiveness in reinforcement calculations compared to the manual method. Additionally, the BIM method has proven to be more efficient in reducing calculation time and minimizing input errors. Thus, BIM is more recommended for large-scale projects that require high accuracy and efficiency in construction volume calculations. However, the manual method remains relevant as a validation tool and for small projects with technological limitations. This study highlights the importance of adopting digital technology in the construction industry to enhance productivity and project planning effectiveness.    

The reliability of a data center is highly dependent on its air conditioning and cooling system. This research evaluates the existing cooling system of Universitas Krisnadwipayana’s data center using the PPDIOO Network Life-Cycle approach. The study finds that the current cooling system, which relies on AC Split, fails to meet TIA-942 standards, posing significant overheating risks and increasing downtime probability. Observational analysis shows that the cooling distribution is inefficient due to inadequate airflow and the absence of a structured cooling layout. To address these issues, this research proposes an optimized cooling system design that incorporates Computer Room Air Conditioning (CRAC), hot aisle-cold aisle arrangement, and raised floor implementation. The recommended improvements also include installing temperature and humidity sensors for real-time environmental monitoring and implementing N+1 redundancy for enhanced system reliability. These solutions are expected to improve cooling efficiency, reduce energy consumption, and mitigate downtime risks. Future research should focus on evaluating the practical impact of this design by conducting real-world trials and exploring liquid cooling technology as a potential alternative for further efficiency improvements.

The addition of probiotics such as Lactobacillus sp to fermented feed is expected to improve nutrient digestibility, suppress the growth of pathogenic microorganisms, and improve feed conversion efficiency, thereby promoting optimal shrimp growth. This study used an experimental method on vannamei shrimp doc 80 using a complete randomized design (RAL) with four treatments: P0 (feed without fermentation as a control), P1 (feed fermentation for 0 hours 10ml/100g with Lactobacillus sp), P2 (feed fermentation for 24 hours with 10ml/100g Lactobacillus sp), P3 (feed fermentation for 48 hours 10ml/100g Lactobacillus sp), P3 (feed fermentation for 72 hours 10ml/100g Lactobacillus sp) by doing 6 repetitions which were carried out for 1 month/30 days in the maintenance tub. The results showed that Treatment A without fermentation gave absolute growth with an average of 1 gr, Treatment B with no fermentation gave absolute growth with an average of 1.89 grams, Treatment C with a fermentation time of 48 hours gave absolute weight growth with an average of 2.15 grams, Treatment D with no fermentation gave absolute growth with an average of 0.74 grams. Meanwhile, the water quality parameters during the study were obtained with water temperature ranging from 28.3-29.6o C, pH ranging from 7.8-8.0, and dissolved oxygen ranging from 4.03-4.66 mg/l. With the anova test, the absolute weight growth showed that with different fermentation time differences, there was a real effect on the growth of vannamei shrimp in C treatment, which was 2.15 gr. And in the results of the anova test, the four water quality parameters were not different between the treatments and were in the optimal range in the life of vannamei shrimp. Based on this study, it can be suggested that the optimal fermented feed is in the time range of 48 hours and there is further research for doc 80 and above.

The manual attendance system using paper at work locations other than offices at PT Gresik Migas creates challenges in the effectiveness and efficiency of employee attendance records. This study implements a web-based attendance system that integrates geolocation and selfie features to improve the accuracy and efficiency of attendance recording. The system was developed using native PHP for backend, jQuery for frontend, MySQL as database, and Leaflet JS for geolocation implementation. Implementation results show the system was successfully implemented in 5 different locations with a 50-meter validation radius and used by 40 employees. This system enables real-time attendance monitoring through an admin dashboard and produces more efficient attendance records compared to the previous manual system.

This paper examines the implementation of the value of ta'awun (cooperation) in the process of collecting the Qur'anic manuscripts during the time of the companions as an inspiration for the development of an inclusive and equitable sharia economy. The collection of the Qur'anic manuscripts was a collective effort involving the companions, qira'at experts, and writers of revelation to maintain the purity of revelation and prevent division of the Muslim community. The value of cooperation reflected in the process is in line with the basic principles of sharia economics such as distributive justice, empowerment of the community, and inclusiveness. By using the library research method with a descriptive analysis approach, this study found that the application of the value of ta'awun can strengthen sharia economic practices through a fair partnership model and investment oriented towards collective welfare. In addition, this value also encourages the creation of an economic system that is not only based on efficiency, but also on ethics and sustainability. Thus, this study provides a conceptual contribution in linking Islamic traditions with contemporary economic practices, creating a harmonious ecosystem between spiritual values and material goals.  

This study aims to analyze the effectiveness of implementing Accurate accounting software in financial report management at PT. XYZ). Accurate is utilized to enhance operational efficiency, recording accuracy, and real-time financial reporting. The findings reveal that the use of Accurate reduces recording errors and accelerates the financial reporting process. Integration features across modules such as purchasing, sales, and inventory improve interdepartmental data consistency. Additionally, Accurate helps the company comply with Indonesian Financial Accounting Standards (PSAK) and tax regulations through automated reporting. Key success factors include adequate employee training and feature customization tailored to the needs of manufacturing companies. This study concludes that technology-based accounting software not only improves financial data accuracy but also supports better strategic decision-making for management.

This study aims to analyse and improve the efficiency of waiting lines in government institutions by identifying the reasons for the length of these lines, using modern technology, overcoming obstacles, and evaluating the impact of improvements on beneficiary satisfaction and service quality. The study is based on the descriptive analytical approach, and is based on a sample of 300 employees and customers. The results showed that improving the efficiency of waiting lines enhances beneficiary satisfaction and increases the efficiency of the institution by reducing waiting times and relieving pressure on beneficiaries, while lack of resources and ineffective technology hinder the implementation of effective management strategies. Based on these results, the study recommends increasing the number of employees, improving the technical infrastructure, adopting modern technology such as electronic reservation and electronic payment systems, enhancing training and awareness for employees, in addition to establishing an effective system for monitoring and evaluating performance to improve the efficiency of waiting lines and the quality of services provided.

The increasing complexity of naval electrical systems and the demand for higher operational reliability necessitate a shift from traditional maintenance methods to data-driven predictive maintenance solutions. This research examines the effectiveness of IoT-based remote monitoring and diagnostic systems in improving system reliability, cost-efficiency, and operational sustainability in naval engineering. A qualitative-empirical approach was applied, utilizing expert interviews, structured surveys, and field observations to assess the impact of IoT-driven predictive maintenance. The findings indicate a significant reduction in system failures (92/100), maintenance costs (89/100), and operational downtime, demonstrating the effectiveness of real-time fault detection and automated diagnostics. Additionally, the study identifies challenges in infrastructure readiness (78/100) and cybersecurity concerns (82/100), which must be addressed for large-scale implementation. While the adoption rate (88/100) reflects strong industry support, skill readiness gaps (80/100) suggest a need for enhanced technical training in maritime education. The research concludes that IoT-based predictive maintenance offers a transformative approach to naval maintenance strategies, ensuring sustainability, efficiency, and enhanced fleet readiness in modern maritime operations.

Biogas is a renewable energy source with significant potential to reduce dependence on fossil fuels. However, conventional biodigester systems still face several challenges in monitoring methane gas production. Therefore, this research aims to design and develop a biogas digester prototype equipped with a stirrer and an Internet of Things (IoT)-based sensor to detect methane (CH4) gas levels. The research methodology involves designing a biodigester with an automatic stirrer and an MQ-2 sensor that can detect methane gas levels in real time. The data obtained is transmitted via ESP32 and displayed on the Blynk application. The research results show that the designed system can increase methane gas production and allow remote monitoring. The conclusion of this study is that the integration of IoT technology in the biodigester system can improve production efficiency and safety in biogas utilization.

The rapid evolution of digital technology has significantly impacted various sports, including niche ones like petanque. This study explores the perceived benefits and barriers of using an Android-based application for scoring and statistics management in petanque, a sport gaining popularity in Indonesia. Traditionally, performance assessment in petanque relied on manual, paper-based methods, prone to inaccuracies and inefficiencies. An Android app, Petanque Match Statistics, was developed to address these challenges, offering real-time data accuracy, improved workflow, and enhanced performance analysis. This study employed a quantitative approach, surveying 50 participants (35 players and 15 coaches) in Surabaya, Indonesia, to assess their impressions of the app's usability, accuracy, efficiency, and overall satisfaction. Results indicated high ratings across all parameters, with no significant differences between players and coaches. The app was commended for its intuitive design, reliability, and time-saving efficiency. Findings highlight the potential of digital solutions to modernise petanque match administration, enhance strategic decision-making, and improve the user experience. The study underscores the importance of user-centred design in facilitating the adoption of digital advancements in sports, offering valuable insights for future developments in petanque and other emerging sports.

This study aims to analyze the implementation of the State Civil Apparatus Information System (SIASN) website in internal ASN management services at the Jambi Animal, Fish and Plant Quarantine Center. This study uses a qualitative research method with a case study approach to analyze the impact of the implementation of the SIASN website on service speed, time efficiency, or obstacles and challenges faced. The results of this study indicate that the implementation of SIASN has succeeded in reducing the time in various ASN administration processes, which previously took several days to only a matter of hours. In addition, this system also increases transparency in employee data management. The main supporting factors for the success of SIASN are the availability of adequate infrastructure and HR competence in operating the system. Overall, this study confirms that SIASN has a significant effect on increasing the efficiency and effectiveness of internal ASN management services.

The selection of building materials is vital for the development of high-quality infrastructure and residential projects. The two most commonly used building materials are red bricks and lightweight bricks. This study compares the productivity and cost of red brick and lightweight brick production and installation in construction projects. Data were obtained through direct observation, worker interviews, and Value Engineering analysis on the Shopee Semanggi Housing Project, which consists of 136 houses with a total estimated budget (RAB) of Rp10.93 billion. The results show that red brick installation productivity is 3.3 m²/day, while lightweight brick installation reaches 17.9 m²/day. The installation cost for red bricks is Rp1.52 billion for 12,786.78 m², compared to Rp1.62 billion for lightweight bricks for the same area. This study provides guidance for selecting building materials based on time and cost efficiency.

This study examines the effectiveness of Management Information Systems (MIS) in environmental permit administration within the Environmental Agency of Makassar City during the 2023-2024 period. Employing a qualitative case study approach, the research integrates several theoretical frameworks including Systems Theory, Technology Acceptance Model (TAM), Resource-Based View (RBV), Diffusion of Innovations, and Contingency Theory to comprehensively evaluate MIS performance. Through in-depth interviews with 35 respondents, direct observations, and documentation analysis over six months, the research identifies the impact of MIS implementation on environmental governance. Findings reveal significant improvements in processing efficiency (42% time reduction), administrative error reduction (67% decrease), and enhanced stakeholder engagement (53% increase in public participation). Nevertheless, challenges persist in regulatory alignment, technical reliability (12% system downtime), and user adaptation (23% of staff reporting usage difficulties). The study underscores the importance of continuous system optimization, targeted training, and cross-departmental integration for sustainable environmental governance. Theoretical contributions include an integrated MIS evaluation model for environmental administration contexts, while practical implications offer recommendations for technology-based permitting process improvements. Research limitations include a single geographic focus and relatively short observation period, suggesting the need for future longitudinal and comparative studies.

In the current digital era, digital Islamic pawnshops have emerged as increasingly relevant financial solutions for society, despite encountering challenges such as inadequate infrastructure, low levels of digital literacy, and technical difficulties. This study aims to examine the obstacles and advantages of digital Islamic pawnshops in promoting financial inclusion in Indonesia. Using a qualitative approach through literature analysis, this research identifies legal and technical issues associated with the implementation of digital Islamic pawnshops. The results highlight that while these pawnshops offer time and cost efficiency, challenges like limited internet accessibility, poor technological awareness, and security vulnerabilities must be resolved. Recommendations include enhancing digital infrastructure, providing comprehensive education, and strengthening security measures to broaden access and improve the quality of digital Islamic pawnshop services.  

This study aims to analyze the effect of body angle variations on propulsion force, drag coefficient, and freestyle swimming performance using a biomechanical approach. Movement efficiency in swimming plays a crucial role in improving athlete performance. This study employed a quantitative experimental design with university or club-level swimmers with at least three years of training experience as subjects. Subjects were selected through purposive sampling with the criteria of being healthy, familiar with freestyle techniques, and willing to follow the research procedures. The instruments used included 3D motion capture to record body angles and movement coordination, force sensors to measure propulsion force and drag coefficient, and a timekeeping system to calculate average speed. The body angle variations tested were 0°, 15°, and 30°, each with three replications. Data were analyzed using descriptive statistics to describe the mean, standard deviation, and data distribution, and comparative statistics (ANOVA or paired t-test) to compare performance between angle variations. The results showed that a 15° body angle provided optimal performance, with increased average speed and propulsion efficiency compared to 0° and 30° body angles. These findings confirm that body angle regulation plays a crucial role in reducing water resistance and increasing propulsion. The study concluded that a 15° body angle is the ideal position for improving freestyle swimming performance. Further research is recommended to expand the number of subjects, explore variations in other swimming strokes, and integrate physiological data for more comprehensive results.

Energy audit is a technique used to obtain the efficiency of a building with a certain method. Continuous research implementation is expected to be able to identify electrical efficiency and the purpose of data analysis is to obtain electrical energy efficiency to calculate the Energy Consumption Intensity (IKE) value in the building. Energy audits can also be carried out at any time or according to a predetermined schedule. Regular monitoring of energy usage is a must to find out the amount of energy used in each part of the operation during a certain period of time. Thus, savings efforts can be made.

One of the fishing tools that is widely used by fishermen in the Pati waters of Central Java is the gill net. This tool has relatively higher productivity and efficiency compared to several other fishing tools because it can catch large numbers of fish when operated. It is one of the fishing tools that is environmentally friendly and popular to use because its operation is not too complicated and is good for development. The purpose of this Field Work Practice is to determine the effect of operational time of gill net fishing equipment on mackerel fish catches in. This Field Work Practice also aims to determine gill net operational times for mackerel fish catches. Data was obtained by conducting experiments from two different treatments, each treatment was repeated 16 times to obtain a total of 32 data. The research method used is the experimental fishing method using t-test analysis, homogeneity test, normality test.  The results of the T-test on 16 repetitions at 07.00-10.00 WIB and 15.00-18.00 WIB were with an average amount of 205.7 kg and 244.4 kg so that a sign (2-tailed) result of 0.004 < 0.05 could be obtained. From the results of the T-test, it can be concluded that H0 is rejected and H1 is accepted, meaning that there is an average difference between the results of tagkapan at 07.00-10.00 WIB and 15.00-18.00 WIB which is influenced by several factors. So it can be concluded that differences in gill net operational times have an effect on mackerel fish. The fishing operation time of 15.00-18.00 WIB is the best operational time compared to 07.00-10.00 WIB which is caused by oceanographic factors, technical factors and natural factors.

The attendance system is an important aspect of personnel management that affects the effectiveness and efficiency of an institution's operations. Puskesmas Tarusan in Pesisir Selatan Regency still uses a manual attendance system that is vulnerable to data inaccuracies, real-time tracking difficulties, and potential fraud such as leaving attendance. To overcome this problem, this research aims to design a geolocation-based attendance application that can improve the accuracy of employee attendance recording and reduce the potential for abuse of the attendance system. This application uses a GPS-based geolocation method that allows attendance recording to only be done at a predetermined work location. By utilising this technology, attendance recording becomes more accurate, transparent, and can be monitored in real-time. This application was developed using the Unified Modelling Language (UML) approach for system design and using mobile-based technology to be easily accessed by employees. The test results show that this system is able to improve the accuracy of recording employee attendance and reduce the potential for fraud in attendance. In addition, this application provides convenience for management in monitoring employee attendance efficiently. With the implementation of this system, it is expected that Puskesmas Tarusan can improve transparency, accountability, and effectiveness in personnel management.

Digital procurement has significantly transformed business operations, impacting production, supply chain management, and customer interactions. At PT XYZ, routine commodity procurement utilizes an e-catalogue system, a form of e-procurement based on a catalog concept. This study examines the implementation stages, advantages, disadvantages, and challenges of the system. Using a qualitative descriptive method, data was collected through interviews, observations, and documentation.Findings indicate that e-catalogue implementation at PT XYZ is complex before achieving full operation. Key advantages include automated PR creation and PO release, reducing administrative workload, enhancing transparency, and expediting procurement. However, drawbacks include inefficient data updates, a less user-friendly interface, and frequent system errors. Challenges involve poor socialization and the perception that the system mainly benefits buyers. Moreover, limited user understanding of time efficiency and error reduction further hinders adoption. Overall, while e-catalogue improves procurement efficiency, further enhancements in user training, system reliability, and feature usability are needed for optimal performance.

This abstract explores the role of artificial intelligence (AI) in enhancing consumer satisfaction in Sichuan's online customer experience and service efficiency. With the rapid growth of e-commerce, understanding consumer preferences and behaviors has become crucial. AI technologies like chatbots, predictive analytics, and personalized recommendations are integrated into online platforms to streamline service delivery and improve user interactions. By leveraging data-driven insights, businesses can tailor their offerings to meet the specific needs of consumers, thereby increasing satisfaction levels. Furthermore, AI facilitates faster response times and more efficient problem resolution, leading to a seamless shopping experience. This study was conducted through an online questionnaire distributed to 380 Sichuan participants to measure their optimization and service efficiency satisfaction. The findings underscore that technical infrastructure, user acceptance and engagement, and service quality positively correlate with consumer satisfaction in AI experience improvement.